Re: TOY: issues with idle

[Jim Brink <toytech@xxxxxxxxxxx>]

Chris Delgado wrote:
> 
> Since the list seems to be getting a bit thin I'll throw some threads into
> the pot.
> 
> What is up with this:
> 
> my 86Runner idles happily at 750+
> until I set my blower (heater) at med-hi or hi speed.
> or if I turn the headlights on..or generally start using electric things.
> 
> then the idle drops a bit, but never lower than 650-500
> its not stalling the truck but it is noticable.
> Whats up with this.
> 
> normal?
> or tired alt?
> 
> keep in mind, previous owner directly routed an ampand a cd player into the
> battery somehow, wther it was done in the "proper" way I'm not sure.


Somewhat normal, especially on trucks with 55A alternators. Check your
battery condition, or have it checked on a load tester. The type of
testers that knock off the surface charge are best.

If the battery is marginal, or the cables, clamps, and connections are
poor, this symptom will be exaggerated. 

Just my experience. FWIW, I noticed a decrease in idle roughness on my
truck with the accessories on once I replaced my Interstate battery with
an Optima...
--
Jim Brink
Toyota/ASE Certified Technician
Manhattan Beach, CA
Technical Toyota Editor-http://www.4x4wire.com/toyota/